Finding the Fourth Proportional to 8,085.88, 12,128.98 and 3,468.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,085.88 : 12,128.98 = 3,468.92 : x
2. Step 2: Convert to fraction form
   8,085.88/12,128.98 = 3,468.92/x
3. Step 3: Cross multiply
   8,085.88x = 12,128.98 × 3,468.92
4. Step 4: Simplify right side
   8,085.88x = 42,074,461.30
5. Step 5: Solve for x
   x = 42,074,461.30/8,085.88
6. Step 6: Final answer
   x = 5,203.45